I was thinking this and it doesn't make sense,

Why does a PCV valve have a valve? If the valve fails, then there is no ventilation.

Why not just slap a breather on the passenger side, then use the non valved PCV looking thingy (also on passenger side) in place the PCV valve?

 

If you just run a straight hose with no valve, you're going to draw way too much of the atomized oil into the combustion chambers when manifold vacuum is high. This will form a thick layer of carbon on your piston domes, upping your compression ratio and eventually causing detonation. Also, a lot of it will stick to your intake valve stems and once it builds up sufficiently your valve stems will be stretched as the carbonized oil (which is very hard) bangs into the bottoms of the valve guides.